垂体后叶抗利尿激素分泌的MRI观察

MR imaging study secretory of antidiuretic hormone

本文通过健康志原者１３人于吸烟前后行垂体矢状位ＭＲ扫描，测量正中矢状位垂体后叶信号强度比及高信号面积，结果显示：吸烟前垂体后叶均呈短Ｔ＿１高信号，吸烟后９例（６９．３％）垂体后叶信号强度下降，前下部变为等信号：吸烟前后垂体后叶信号强度及高信号面积明显变化（Ｐ＜０００１）。

The Sagittal MR inages of pltuitary gland were performed before and after smoking on thirteen volunteers,The Signal intensity ratio and area of high signal of posterior pituitary lobe in mid-sagittal MR images weremeasured. As a result, the highintense signal of posterior pituitary lobe was seen beforesmoking, After smoking,the signal intensity of posterior lobe was decreased in 9 cases(69.3%), changed into iso-intensity signal atanteroinferior portion. The signal intensity and area of high signal of posterior pituitary lobe showed asignificant change(P< 0.001).